Mead Johnson Lawsuit Claims Premature Child Developed NEC From Enfamil

Lawsuit claims infant developed NEC after ingesting cow’s milk-based formula, resulting in intensive treatment and potentially lifelong digestive complications.

A product liability lawsuit filed by a Florida mother alleges that her premature infant developed a life-threatening intestinal disease after being fed Mead Johnson’s Enfamil cow’s milk-based fortifier while hospitalized.

The complaint (PDF) was brought by Angel Bailey on behalf of her minor child, S.J., in Illinois Circuit Court on February 27, naming Mead Johnson & Company LLC and Mead Johnson Nutrition Company as the defendants. It was removed to the U.S. District Court for the Southern District of Illinois on April 9, and transferred (PDF) to the U.S. District Court for the Northern District of Illinois on April 20.

The lawsuit alleges that Bailey’s child developed necrotizing enterocolitis (NEC) as a direct result of ingesting the cow’s milk-based product. This diagnosis led to intensive medical treatment, including antibiotics and procedures to address complications, as well as ongoing digestive problems expected to last for life.

Newborn NEC Risks

Necrotizing enterocolitis occurs when harmful bacteria invade a newborn’s intestinal wall, triggering severe inflammation and tissue death that often requires emergency surgical intervention. The diagnosis can be fatal. Premature infants face the greatest risk due to their underdeveloped digestive systems, and those who survive frequently experience lasting medical complications and chronic health issues.

In recent years, concerns about the causes of necrotizing enterocolitis have intensified, particularly regarding the role of infant feeding practices in neonatal care. A growing body of evidence suggests that cow’s milk-based formulas may significantly increase the risk of the condition in preterm infants compared to diets based on human milk and human milk-derived fortifiers.

These findings have led to a surge of infant formula NEC lawsuits filed in courts nationwide. The cases generally allege that Mead Johnson, the maker of Enfamil, and Abbott Laboratories, which manufactures Similac, failed to adequately warn parents and healthcare providers about these risks, while continuing to market their products as safe and appropriate for premature infants.

Enfamil NEC Allegations

In the lawsuit, Bailey claims her daughter was born prematurely at about 29 weeks gestation in 2021 at Tampa General Hospital, weighing approximately 1,360 grams, and was given Enfamil Standard Human Milk Fortifier shortly after birth. Within a short time, the infant was diagnosed with NEC, which the complaint indicates is one of the most dangerous conditions affecting premature infants.

According to Bailey, multiple studies have found that premature infants fed cow’s milk-based products face dramatically higher rates of NEC, with some research suggesting the condition is several times more common than in infants fed exclusively human milk. The complaint also cites guidance from pediatric authorities recommending that preterm infants receive breast milk or donor milk due to lower risks of complications.

Despite this evidence, the filing alleges that Mead Johnson continued to market its products as safe and nutritionally comparable to breast milk, while failing to provide adequate warnings about the increased risk of NEC. Bailey claims the company promoted its Enfamil products directly to hospitals and parents, emphasizing benefits while omitting known dangers.

The complaint further accuses Mead Johnson of using misleading branding, including the term “human milk fortifier,” which Bailey says may lead consumers to believe the product is derived from breast milk when it is actually cow’s milk-based.

Bailey contends that safer alternatives were available, including fortifiers derived from human breast milk, which allegedly do not carry the same risk of NEC. However, the lawsuit claims Mead Johnson failed to adopt those alternatives or reformulate its products, despite knowledge of the risks.

“Mead has aggressively marketed their milk-based products as medically endorsed and nutritionally equivalent alternatives to breast milk, including prior to Baby S.J.’s birth.”

— Angel Bailey v. Mead Johnson & Company LLC et al

The case raises allegations of strict liability, failure to warn, negligence, misrepresentation and breach of warranties, arguing that the products were defectively designed and unreasonably dangerous for premature infants.

It seeks compensatory damages for the child’s medical care, pain and suffering, and long-term health complications, as well as damages for the emotional distress and financial losses experienced by the family.

Enfamil and Similac NEC Lawsuits

Nearly 800 Enfamil NEC lawsuits and Similac NEC lawsuits are currently pending in the federal court system, where Bailey’s and other nationwide cases have been centralized before U.S. District Judge Rebecca R. Pallmeyer in the Northern District of Illinois as part of a multidistrict litigation (MDL).

As part of the coordinated proceedings, the court has directed the parties to prepare a pool of cases for early “bellwether” trials, which are intended to test how juries may respond to common evidence and testimony expected to be presented across the litigation.

An initial trial was previously scheduled for last April, but Judge Pallmeyer dismissed that group of cases due to insufficient supporting evidence and replaced them with a new set of claims, with the first trial now expected to begin in August.

Three Similac lawsuits have already gone to trial at the state level. The first, tried in Missouri state court in the summer of 2024, resulted in a verdict of nearly $500 million. A second trial in the same court that November ended in a defense win, which was later overturned after a judge found Abbott improperly presented inadmissible evidence, leading to a new trial order. The third case resulted in $70 million in damages to four mothers who brought their case in Cook County, Illinois Circuit Court.

A separate Mead Johnson Enfamil claim led to a $60 million damages award in 2024 following a prior trial in Cook County court.

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